Seat-lock for vehicles



(No Model.)

H. C. SWAN.

ASEAT LOOK POR VEHICLES. 510.538,753. v Patented May 7, 15895.

WITNESSES INVENT UNITED STATES PATENT EEroE,

HENRY C. SWAN, OF OSHKOSH, VISCONSIN.

SEAT-LOCK FOR VEHICLES.

SPECIFICATION forming part of Letters Patent No. 538,753, dated May '7, 1895.

` Application filed December 29, 1894. Serial No. 533,242. (No model.)

To all whom it may concern:

Be it known that I, HENRY C. SWAN, of Oshkosh, in the county of Winnebago and State of Wisconsin, have invented a new and useful Improvement in vSeat-Locks for Vehicles, of which the following is a full, clear, and exact description.

My invention relates to an improvement in seat-locks for holding vehicle seats in place, and is illustrated in the accompanying drawings, in which- Figure 1 shows the seat-lock in elevation and in locked position. Fig. 2 is a similar View showing the same in unlocked position. Fig. 3 is a vertical section on the line III III of Fig. 1, and Fig. 4 is a vertical section on the lineIV 1V of Fig. 2.

In the drawings, 2 represents the riser of a Vehicle seat to which the lock is attached.

8 represents the vehicle body, and 4 is the rail or strip on the body with which the vehicle lock engages.

The lock which is attached to the seatfriser, has a base-plate 5 set against theside ofthe seat-riser and affixed thereto. Said base-plate has a central hub or boss 6, and an outwardly projecting inclined guide-tongue or bracket 7. The seat-hook 8 is made `integral with an oblong cam-yoke 9 which is set around the hub 6, and the shank of the hook has a keyslot through which `the inclined guide-tongue or bracket 7 passes, said tongue or bracket being provided with a key-head or enlarged end-portion, which when the hook is elevated to its full extent, by engagement with the sides of the slot, holds the hook to the baseplate. y

10 is a cam which fits around the hub 6 and within the yoke 9 and which has a face-plate or iiange 11 projecting beyond and covering the cam yoke. To guide the hook and to cause it to move vertically when actuated by the cam, as hereinafter described, the baseplate has a vertical guide-slot12 in which lits a projection 13 on the cam yoke. v

14 is a bolt which passes through the hub 6 and holds the parts inplace when they are assembled and applied to the seat.

In Figs. 1 and 3 I show a lock applied to the seat and with the parts in the position which they occupy when the hook 8 has engaged the rail 4 and is drawn up tightly against the rail by manipulation of the cam, thus holding the seat securely tothe vehicle body. To unlock the seat, the handle 15 of 5 5 the cam is turned upwardly into the position shown in Figs. 2 and 4, and by the rotation of the cam within the yoke the yoke and hook are forced downwardly so as to free the hook from the rail 4; but as the hook and cam yoke are moved down, the end of the key-slot engages the inclined guide-tongue or bracket 7, rides thereon, and is moved outwardly beyond the vertical plane of the rail 4, as shown in Fig. 4. The seat may then be raised freely in a perpendicular line without liability of the hook catching on the body-rail. When the seat is again applied to the body and the hook drawn up by the reverse rotation of the cam, the guide-tongue or bracket 7 so guides the shank of the hook as to draw it inwardly and to cause it to engage with the lower edge of the rail, as shown in Figs. l and 3.

The advantages of my improved device are that it is entirely automatic in its operation of removing the hooks from the path of the body rail, it is easy to operate, and is simple and durable.

Without limiting myself strictly to the precise construction of parts shown and described herein, since these may be modied by those skilled in the art without variance from my invention as defined in the claims,

1. A seat-lock having a hook movable longitudinally to and from a holding projection or rail, and also movable with its shank in an outward direction, means by which the hook is so moved longitudinally, and a stationary guide by which the hook and shank are swung outwardly'as they move longitudinally away from the holding projection or rail; substantially as described. j Y Y 2. A seatlock having a base-plate provided with a stationary outwardly inclined guide- 95 tongue or bracket, a hook having a bearing on said tongue or bracket, and a cam by which the hook is actuated and moved to or from a holding projection or rail, said guidetongue or bracket operating to cause the hook Ico to swing outwardly as it is moved away from the rail.

3. A seatlock having a base-plate, an outwardly inclined guide-tongue or brackethavingr a keyehead thereon, the hook and ca1nyoke having a key-slot through which the tongue or bracket passes, and a cam.

4. A seat-look having a base-plate provided With an outwardly inclined guide-tongue or bracket, a hook having a bearing on said tongue or bracket, and a cam by which the hook is actuated and moved to or from a holding projection or rail, said guide-tongue or bracket operating to cause the hook to swing outwardly as it is moved away from the rail; said base-plate having a vertical guide-slot in which a projection fromthe hook lits; substantially as described.

In testimony whereof I have hereunto set my hand.

HENRY C. SWAN. Witnesses:

EMIL W. JAITE, MARTIN O. SENSENY. 

